Thanks for sharing! I might be able to find a threaded hole near the rear wheel dropout area to secure the mount.
The bottle cage holder is secured by 2 adjustable rubber bands, (think of Apple Watch's rubber strap), and it can be rotated slightly to the right before folding. So no problems.
Added product link:
https://www.amazon.sg/Bike-Bottle-Cage-Mounting-Black/dp/B08YYVJSKY/ref=asc_df_B08YYVJSKY/?tag=sgsmrtphshopg-22&linkCode=df0&hvadid=594361121456&hvpos=&hvnetw=g&hvrand=14569070634643835923&hvpone=&hvptwo=&hvqm t=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9062515&hvtargid=pla-1318696354477&psc=1
Originally Posted by
CEBEP
I have no idea how sturdy it is but this looks to be an adaptor which you can mount on the drive side that will accept any standard rear light. Here is the
link
Could be paired with Bumm or SON lights which are very small and light: